References

Input/Output Characteristics

DME64N/DME24N Owner’s Manual 61

Input/Output Characteristics

DME24N ANALOG INPUT CHARACTERISTICS

• 0dBu = 0.775 Vrms
• All AD converters (CH1-8) are 24-bit linear, 128 times oversampling.
• +48V DC (phantom power) is supplied to CH INPUT (1-8) connectors via
each individual controlled switch.

DME64N ANALOG OUTPUT CHARACTERISTICS

• 0dBu = 0.775 Vrms
• Stereo Phone Jack = unbalanced (Tip = LEFT, Ring = RIGHT, Sleeve =
GND)

DME24N ANALOG OUTPUT CHARACTERISTICS

• 0dBu = 0.775 Vrms
• All AD converters (CH1-8) are 24-bit linear, 128 times oversampling.
• Stereo Phone Jack = unbalanced (Tip = LEFT, Ring = RIGHT, Sleeve =
GND)

DME64N DIGITAL INPUT CHARACTERISTICS

DME64N DIGITAL OUTPUT CHARACTERISTICS

DME64N/24N ELECTRICAL CHARACTERISTICS

(Output impedance of signal generator: 150Ω)

* CH INPUT 1-8 and CH OUTPUT 1-8 are provided on the DME24 only.
Frequency Response 20Hz – 20kHz, reference to the nominal output level
@1kHz
Frequency Response fs = 96kHz@20Hz – 40kHz, reference to the nominal
output level @1kHz
Gain Error @1kHz
Total Harmonic Distortion fs = 48kHz
Total Harmonic Distortion fs=96kHz
Hum & Noise EIN = Equivalent Input Noise
• Hum & Noise are measured with a 6dB/octave filter @12.7kHz;
equivalent to a 20kHz filter with infinite dB/octave attenuation.

DME24N ELECTRICAL CHARACTERISTICS

Dynamic Range
• Dynamic range are measured with a 6dB/octave filter @12.7kHz;
equivalent to a 20kHz filter with infinite dB/octave attenuation.
Crosstalk@1kHz
Maximum Voltage Gain@1kHz
Phantom Voltage
PEAK/SIGNAL Indicator Level
Terminals Gain
Actual
Load
Impedance
For Use
With
Nominal
Input Level
Connector
Nominal Max.
before clip
CH INPUT
1 – 8
-60dB 3kΩ 50 – 600Ω
Mics &
600Ω
Lines
-60dBu
(0.775mV)
-40dBu
(7.75mV)
Euroblock
+10dB +10dBu
(2.451V)
+30dBu
(24.511V)
Output
Term i n a l s
Actual
Source
Impedance
For Use
With
Nominal
Output Level
Connector
Nominal Max. before
clip
PHONES 15Ω 8Ω 75mW 150mW Stereo
Phone Jack
40Ω 65mW 150mW
Output
Term i n a l s
Actual
Source
Impedance
For Use
With
Nominal
Output Level
Connector
Nominal Max. before
clip
CH OUTPUT
1 – 8
75Ω 600Ω Lines +4dBu
(1.23V)
+24dBu
(12.28)
Euroblock
PHONES 15Ω 8Ω 75mW 150mW Stereo
Phone Jack
40Ω 65mW 150mW
Terminal Format Data Length Level Connector
CASCADE IN – 24-bit RS422 D-SUB Half Pitch connector 68P
(Female)
Terminal Format Data Length Level Connector
CASCADE OUT – 24-bit RS422 D-SUB Half Pitch co nnector 68P
(Female)
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8
CH OUTPUT
1 – 8
600Ω GAIN = -60dB -1.5 0.0 0.5 dB
Internal
OSC
PHONES 8Ω -3.0 0.0 0.5 dB
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8
CH OUTPUT
1 – 8
600Ω GAIN = -60dB -1.5 0.0 0.5 dB
Internal
OSC
PHONES 8Ω -3.0 0.0 0.5 dB
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8
CH OUTPUT
1 – 8
600Ω GAIN = -60dB 2.0 4.0 6.0 dBu
GAIN = +10dB 2.0 4.0 6.0 dBu
Internal
OSC
PHONES 8Ω -30dBFS @1kHz,
phones level control:
max.
-2.0 0.0 2.0 dBu
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8
CH OUTPUT
1 – 8
600Ω GAIN = -60dB
@20Hz – 20kHz
@+14dBu
0.1 %
GAIN = +10dB
@20Hz – 20kHz
@+14dBu
0.05 %
Internal
OSC
PHONES 8Ω -30dBFS @1kHz,
phones level control:
max.
0.1 %
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8
CH OUTPUT
1 – 8
600Ω GAIN = -60dB
@20Hz – 20kHz
@+14dBu
0.1 %
GAIN = +10dB
@20Hz – 20kHz
@+14dBu
0.05 %
Internal
OSC
PHONES 8Ω -30dBFS @1kHz,
phones level control:
max.
0.1 %
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8
CH OUTPUT
1 – 8
600Ω GAIN = -60dB
Master fader at
nominal level and
one Ch fader at
nominal level.
(Mixer mode)
-128
EIN
dBu
-64 dBu
600Ω GAIN = +10dB
Master fader at
nominal level and
one Ch fader at
nominal level.
(Mixer mode)
-82 dBu
– PHONES 8Ω Residual outp ut
noise, phones level
control: min.
-86 dBu
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8
CH OUTPUT
1 – 8
600Ω GAIN = +10dB 106 dB
From/To To/F r o m Conditions Min. Ty p. Max. Units
CH N CH (N-1) or
(N+1)
CH1 – 8, adjacent inputs -80 dB
Input Output RL Conditions Min. Typ. Max. Units
CH INPUT
1 – 8
CH OUTPUT
1 – 8
600Ω GAIN = -60dB 64 dB
Output Conditions Min. Typ. Max. Units
CH INPUT
1 – 8
hot, cold: No load 46 48 50 V
Input Output Conditions Min. Typ . Max. Units
CH INPUT
1 – 8
– GAIN +10dB PEAK
red LED:ON
25 27 29 dBu
GAIN +10dB SIGNAL green
LED:ON
-12 -10 -8 dBu
– CH OUTPUT
1 – 8
PEAK red LED:ON 19 21 23 dBu
SIGNAL green LED:ON -18 -16 -14 dBu